Sensor has steady light and won't connect

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  • Updated 10 months ago
I have a model 00754W5 indoor/outdoor thermometer, and the sensor that it came with.  I never got a low battery notice for the sensor or the base, but outdoor temp stopped updating a few days ago.  I figured it was just batteries and so went to change the sensor batteries and found the red light on the sensor was on continuously.  After I changed the batteries, the light remained on.  So I tried some DIFFERENT new batteries - same result: red light stays on.  

So, I dug out the manual, but there is nothing that says what a steadily lit light on the sensor means.  In the mean time, I also replaced batteries in the base station.  Moved base station and sensor next to each other and removed/replaced batteries as indicated in the manual, and left them near each other to get acquainted.  No change.  Base station seems to be searching for a sensor, and after a while gives up and shows no signal bars and dashes for outdoor temp.  I also tried switching to another frequency on both units.  Same results.  

I also happen to have another acurite weather station with another sensor that looks very similar, and just for grins switched my base station to that set's frequency and it found that sensor in a heartbeat.  So it seems that something bad has happened to the sensor that is making it scream for help (which is what I am imagining the steady red light means, since there is no actual documentation of what that means... :)  )  I have replaced all batterries and followed all instructions in the manual.  

Now what? What does the steady red light even mean?  Help!
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Linda Stoutenburgh

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Posted 10 months ago

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AcuRite Tori

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Hello Linda,

 When was this model purchased? What kind of batteries are you using? We would recommend using a high quality alkaline battery such as Duracell Coppertop, Energizer alkaline, Kirkland's, or Rayovac and performing the troubleshooting steps below. If this does not correct the issue please let us know. Thank you.

Hard reset:
1.Bring both the sensor and display unit indoors and position them side by side.
2.Remove all batteries from the sensor.
3.Remove all power from the display unit.
4. Change the A-B-C channel on both the display and sensor making sure they both match.
5.Reinstall batteries in display last.
6.Let units sit within a couple feet of each other for 5 minutes to ensure a wireless signal is received. Once you have the outdoor temperature you can put the sensor back outside.
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Linda Stoutenburgh

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Purchased in June.  Have tried Amazon batteries and energizer.  Have done the procedure with both kinds, same response with both.  So what do you suggest?  And what does the steadily on sensor light mean, anyway?
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AcuRite Rachell, Employee

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Hello Linda,

If the light remains on after these troubleshooting steps have been preformed, the sensor will need to be replaced.  We have emailed you at the email address associated with your forum account. Please check your inbox.  Thank you.